pretty sure the dyno was set to ‘optimistic’ but here it is:
MY10 Exige 240S
chargecooled
lightened flywheel
2bular GT3
260 upgrade (smaller pulley, bigger fuel pump, bigger injectors)
remap
to be fair it does feel significantly faster than the essex attempt, but the number itself is crazy
Pulley size?
At flywheel? Hubs? Wheels?
Good work, that’s 24hp than my Honda SC + CC setup which is savage enough!
No idea on the pulley size, we’re in the process of moving house so all my invoices are in a box somewhere
I’d assume that’s the power at the wheels scaled up by a factor, i’ll ask them but it’s taken 5 weeks to get the graph so don’t expect a response any time soon
The car goes well, result
The power curve I would guess is a calculated flywheel figure from hub results. If I’m honest, I’d have to say its wildly optimistic. Putting tiny pulleys on is a diminishing return and I’d be surprised to see a2zz with OEM SC putting out that much. You don’t really want that much through a non forged bottom end!
I have always found EA tunes to be much more on the safe side, I always felt they had a lot to gain from the valve timing and lift but the just left it all as stock.
Also the timing could have been a lot riskier and the AFR was on the cautious side of sensible.
Mine with the 2.9" pulley makes around 275hp peak HP @ the hubs with 185lb/ft of torque.
I always felt there was more in the tune but was happy to be safe.
As a good rule of thumb, you make ~10hp for every 0.1" smaller the pulley is, I found this as we tested from standard 3.228" all the way to 2.9"
What I did find was not to go to mad on the manifold bore sizes!
EA did the pulley maybe 2-3 years ago and mapped it to 285hp, not sure where this extra 70 horse as come from lol
Good job you’ve got a good gearbox 
Was it an American Dyno? They always seem to be optimistic 
Oh that one most people seem to use!
Yeah got to love that yank dyno maths
So what’s changed to give you that result , just a remap ?
What gearbox do you have ?
He’s bought my old one in readiness lol
so the car was a 240s upgraded with the 260 parts, a 2bular gt3 and an essex map it hit 285bhp which sounded about right,
it stalled at idle so i sent it away for a remap to fix that and while it was in the garage i had a strengthened gearbox with lsd fitted courtesy of jfk and a new clutch and lightened flywheel put in.
either the car’s genuinely made +70bhp in which case i should be worried about the pistons, valves etc and a potential engine death on the cards … or the dyno graph is ridiculously optimistic and that makes the mappers look like amateurs. .
I’d be fine with the latter as long as they could provide me with a ‘before’ dyno graph e.g. if the before graph read 340bhp i’d still feel that was a result overall and tbh the main reason for the map was the idle, i didn’t really expect much power increase. I’ll see what other dyno prints they can come up with.
I still have two pulleys and matching belts here Scosh .
Open to offers !
A 2.9 and a 2.8
Make proper use of that gearbox !!
What difference do smaller pulleys make, noticeable difference? Am I right in thinking standard one is 3.2
Mine with the 2.9" pulley makes around 275hp peak HP @ the hubs with 185lb/ft of torque.
As a good rule of thumb, you make ~10hp for every 0.1" smaller the pulley is, I found this as we tested from standard 3.228" all the way to 2.9"